Research Seminar - Institute for Infrastructure Engineering

You are invited to attend the Visiting Research Seminar at the Institute for Infrastructure Engineering. Dr Jinhai Li, Department of Civil and Architectural Engineering, Kunming University of Science and Technology, China will present 'Nonlinear vibrations of cables of Cable-stayed bridges and vibration control systems'.

Abstract: Cable of Cable-stayed bridges is an infinite dimensional vibration system with low damping and high flexibility characteristics. The vibration usually possesses a significant nonlinear behavior. Firstly, an ideal model of the cable of cable-stayed bridges is discussed and the N single mode vibration equation with the form of Duffing equation is developed through decoupling the model. Then, based on the Smale horseshoe map chaos theory, the longest cable of the world’s largest span cable-stayed bridge, i.e. the Jiangsu Sutong Yangtze River Highway Bridge, is selected as an example, the chaotic threshold of single mode vibration equation is analyzed by using the numerical method. Finally, Markov partition properties of Poincare mapping of the single mode vibration equation are discussed, and corresponding two-dimensional symbolic dynamical system is achieved. In considerations vibration control of cables of practical cable-stayed bridges, magnetorheological fluid damper and nonlinear viscous fluid damper are investigated.

Biography: Dr Li received his PhD degree from Harbin Institute of Technology in 2006. Currently, he is the Assistant Professor of Kunming University of Science and Technology (KUST). He has received the Science and Technology Progress Award from the Ministry of Education of China in 2010. He has secured RMB 260,000 External Funding (Dr. Li’s Credit), including 1 NSFC awards and awards from industries. He has published 15 peer-reviewed journal papers and13 conference papers. He has developed an engineering mechanics curriculum at KUST, which includes three undergraduate courses. He has supervised 5 Master’s students to successful graduation.

For catering purposes, please RSVP to iie-admin@uws.edu.au by COB Tuesday 30 July 2013. Please advise if you have any special dietary requirements.